US 11,918,711 B2
Aerogel carrying active material and composite of hydrogel and the aerogel
Tae Won Kim, Seoul (KR)
Assigned to Industry-University Cooperation Foundation Hanyang University, Seoul (KR)
Appl. No. 16/962,878
Filed by Industry-University Cooperation Foundation Hanyang University, Seoul (KR)
PCT Filed Jan. 21, 2019, PCT No. PCT/KR2019/000826
§ 371(c)(1), (2) Date Jul. 17, 2020,
PCT Pub. No. WO2019/143205, PCT Pub. Date Jul. 25, 2019.
Claims priority of application No. 10-2018-0006942 (KR), filed on Jan. 19, 2018; and application No. 10-2019-0007487 (KR), filed on Jan. 21, 2019.
Prior Publication US 2020/0345882 A1, Nov. 5, 2020
Int. Cl. C08J 3/075 (2006.01); A61L 9/04 (2006.01); C08J 3/20 (2006.01); C08J 3/24 (2006.01); C08K 7/16 (2006.01); C08K 9/12 (2006.01); C08K 11/00 (2006.01)
CPC A61L 9/048 (2013.01) [C08J 3/075 (2013.01); C08J 3/203 (2013.01); C08J 3/242 (2013.01); C08K 7/16 (2013.01); C08K 9/12 (2013.01); C08K 11/00 (2013.01)] 11 Claims
 
1. A method of preparing an aerogel/hydrogel composite comprising:
preparing a plurality of aerogel particles including an aerogel particle having particle clusters and pores formed in a porous network of the particle clusters, and an active material supported in the pores for supplying fragrance;
preparing a polymer solution in which a polymer is dissolved in a water-soluble solvent;
mixing the plurality of aerogel particles into the polymer solution, and then homogenizing the mixture to prepare an aerogel/polymer dispersion; and
mixing the dispersion with a crosslinking agent solution to prepare an aerogel/hydrogel composite carrier,
wherein the aerogel particles are hybrid aerogel particles having a Si—CH3 group and an OH group in addition to a Si—O—Si group.